I've been oilpulling for over a year now and the ones I like are sunflower, sesame, and safflower. Don't like olive oil, due to taste and it makes my teeth look yellow. Extra virgin coconut oil is okay but not my constants. I do want to try avacado oil and expecially walnut oil if I can find organic. I also tried hemp oil. It's a green oil but it doesn't stain my teeth. I enjoy oilpulling with it, but it's hard to find now that my store stopped carrying it.